What books do you recommend if i have read the fault in our stars, obsessed, and two kisses for maddie ( if you don’t know what these books are then you can look them up to know what book to recommend)

the economic activity signified in that scenario is a. production

in general, market production makes reference to the elaboration of a product or service which is destinated for economic purposes (to be sold) at money-price in a market. such product or service has to be principally tradable for money.

there is no money exchange involved in distribution, generalized reciprocity or balanced reciprocity.

you stated "which of the following" but i don't see anything else

d) what is the average income of a dentist in the united states